Easy Overnight Breakfast Casserole

Everyone needs a quick and easy overnight breakfast casserole. This recipe is so simple to make and loaded with flavor. You’re going to love it!

Easy Overnight Breakfast Casserole:

Whether you’re having overnight guests, planning a special brunch, or just wanting something different to serve your family in the morning, you’ll want to try this delicious overnight breakfast casserole.

Recipe for an Easy Overnight Breakfast Casserole

As a former innkeeper, breakfast is one of my favorite meals. (I say “one of” because, if I’m honest, I like every meal!) I have fixed breakfast for many people and have long enjoyed experimenting and creating new recipes to start the day.

Ham and Cheese Overnight Breakfast Casserole

What I love about this overnight breakfast casserole is that it’s a blend of classic flavors that many folks seem to enjoy. However, it also serves up a lot of flexibility.

How to Make Overnight Breakfast Casserole:

Simply by swapping breads, cheeses, meats, or vegetables, you can customize this casserole to please any palette or come up with a new flavor combo each weekend of the year.

Easy Overnight Breakfast Casserole | Inspired by Charm

For this particular recipe, I started with French bread and a dozen eggs. (Makes sense for breakfast, right?)

From there I went with traditional breakfast flavors, including ham, cheddar cheese, and chopped peppers. For even more flavor, I added dijon mustard, garlic powder, salt, pepper, and thyme.

Recipe for an Easy Overnight Breakfast Casserole

Easy Overnight Breakfast Casserole | Inspired by Charm

All of this gets mixed together and refrigerated overnight. Come morning, all you do is turn on your oven and bake the casserole.

An easy ham and cheese overnight breakfast casserole!

This is another huge perk of this recipe, especially if you’re not a morning person.

An easy ham and cheese overnight breakfast casserole!

Now just slice, serve, and enjoy! Breakfast is ready!

Recipe for Easy Overnight Breakfast Casserole

In case you’re looking for something to go along with this recipe…

Here’s what to serve with this overnight breakfast casserole?

An easy ham and cheese overnight breakfast casserole!

If you’re anything like me, you’re craving some breakfast right about now. Am I correct?

An easy ham and cheese overnight breakfast casserole!

I hope you enjoy this Easy Overnight Breakfast Casserole. Give it a try the next time you’re put in charge of breakfast!

Easy Overnight Breakfast Casserole Recipe:

Easy Overnight Breakfast Casserole

Did you make this recipe? Leave a review!

Course: Breakfast
Cuisine: American
Keyword: breakfast casserole, overnight breakfast, easy breakfast, eggs, bread
Servings: 12 people
Prep Time 15 mins
Cook Time 55 mins
Total Time 1 hr 10 mins
Everyone needs a quick and easy overnight breakfast casserole. This recipe is so simple to make and loaded with flavor. You're going to love it!


  • 6 cups cubed French bread
  • 1 cup cubed ham
  • 1 cup chopped peppers - (red, yellow, orange, or green)
  • 1 1/2 cups shredded white cheddar cheese
  • 12 eggs
  • 2 cups milk
  • 2 teaspoons ground Dijon mustard
  • 1 teaspoon garlic powder
  • 1 teaspoon finely chopped fresh thyme
  • 1 teaspoon kosher salt
  • 1/2 teaspoon black pepper
  • 1/4 cup shredded Parmesan cheese


  • Begin by preheating your oven to 350 degrees F. Spray a 9x13-inch baking dish with cooking spray. Fill with the bread, ham, peppers, and cheese. Mix to evenly combine.
  • In a large bowl, whisk together the eggs, milk, Dijon mustard, garlic powder, fresh thyme, salt, and pepper. Pour this mixture on top of the bread mixture. Gently press down the bread with a spoon. Sprinkle with shredded Parmesan cheese.
  • Bake 50-55 minutes until the eggs are cooked through. Cover the pan with aluminum foil if the top begins to brown too quickly. (If preparing the casserole in advance, cover the baking dish with aluminum foil and refrigerate overnight. Bake as directed.)
  • Garnish with fresh thyme and slice to serve.

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Disclosure: This blog post may contain affiliate links as part of the Amazon Services LLC Associate Programs and other affiliate services. This means that inspiredbycharm.com receives a small commission by linking to Amazon.com and other sites at no cost to the readers.

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  • Darlene at

    Each Christmas I make an overnight casserole for Christmas morning. I decided to try your recipe. My husband said this was the best one yet!! I agree! This will be my go to casserole each year Christmas!! So delicious!! Thank you for the wonderful recipe! I love your site also, I have followed you for a while now. (and you are just adorable) Happy New Year!!! Hugs!!

  • Lorena Tuinenburg at

    This recipe seems like a great opportunity to empty out the fridge using ingredients that may expire soon, right? I love it! I especially love that you can prep it the night before and just bake it in the morning…so I could throw it in the oven, take my dogs for a walk, and when we come back STARVING, breakfast.is done! Ha!
    I’m keeping this recipe in mind for the holidays as well.
    Thanks for sharing, Michael!

  • Susan at

    I just discovered your recipe when you reposted it and made it last week. Since there are a couple of vegetarians in my family I left out the ham and added in some mushrooms and lightly cooked fresh spinach; kept everything else the same. It was delicious! Wonderful to serve on these cold January mornings.

  • Emily S. at

    This recipe was a complete sensation!! It was a total hit! Incredibly delicious!! Made the overnight version. Used green peppers only. Thank you so very much for sharing! Readers, you will love this recipe!

  • Rachel at

    This overnight breakfast casserole was such a big hit. My family loved it! Thank you for sharing!

  • Alison at

    This looks amazing! I’m definitely going to give this a try!

  • Ivory at

    This looks amazing. I love the idea of preparing it overnight. Yum!

  • Patricia at

    I’ve made this dish before, except I made mine sweeter, more like a bread pudding (same basic recipe). I used the bread (any white or whole wheat), eggs, milk and cinnamon. I layer in blueberries. Great with syrup and sausage on the side. For years, this was my go-to for Christmas morning.

    • Michael Wurm, Jr. at

      Wow! That sounds delicious! I actually want to make something like this using cinnamon rolls. Stay tuned!!

      xo Michael

      • Lorena Tuinenburg at

        OOOH! I love that! You could totally make one of each for a brunch!

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